Press



(No Model.)

- G. A. LIEB.

PAPER PUNGHING PRESS. N0. 329,523. Patented 0011.27, 1885 Q he w :4 Q Wioe Qx J I is g y WITNESSES INVENTOR @z dhwvhe kllwv ATTORNEYS N4PETERS, min-Lithographer. Wnhlnginll. D. C.

UNITED STATES PATENT OFFICE.

CHARLES A. LIEB, OF NE\V YORK, N. Y.

PAPER-PUNCHING PRESS.

SPECIFICATION forming part of Letters Patent No. 329,323, dated October27, 1885 Application filed October 2, 1884. Serial No. 144,568. (Nomodel.)

To all whom it may concern.-

Be it known that I, CHARLES A. LIEB, a citizen of the United States,residing at New York, in the county and State of New York, have invented new and useful Improvements in Paper- Punching Presses, of whichthe following is a specification.

This invention relates to certain improvements in punching-presses ofthat class which are intended for punching holes into piles formed ofalarge number of sheets of paper or other materials.

The peculiar and novel construction of my punching-press is pointed outin the following specification and claims, and is illustrated in theaccompanying drawings, in which- Figure 1 is a vertical section in theplane a: m, Fig. 2. Fig. 2 is a front view. Fig. 3 is a sectional rearview, the plane of section being indicated by the line 3 Fig.1. Fig. 4is a plan or top View; and Fig. 5 is a longitudinal sectional view, onan enlarged scale, of one of the hollow punches.

Similar letters indicate corresponding parts.

In the drawings, the letterA designates the frame of the machine, thepart A of which is provided with suitable guideways,in which thetable-carriage Bslides. T o the table-carriage B is secured the table 0by means of screws a, Fig. 2, passing through slots (0 in the table,thus permitting the position of the table to be adjusted by the screw11, passing through the bottom of the table-carriage, and to be fixed,when in the desired position, by screwing up said screws a.

D is a shaft passing through the frame A, carrying on one end the pulleyE, which receives rotary motion from a belt, and on the other end a cam,F. A recess, 0, in this cam engages a stud, c, screwed into the hub f,formed on the back of the table-carriage B.

The cam F and the stud 0 form mechanism for imparting motion from theshaft D to the table-carriage B, and consequently to the table 0connected therewith.

G is the tool-carriage,which slides in guideways in the table-carriageB, and is provided with two split clamps, d e, the lower clamp, e,passing through a slot, 1), in the table 0. Into the clamps d e arefirmly secured, inline with each other, the two punches H I, by drawingup the screws of the clamps.

Inv a hub, g, which is formed on the back of the tool-carriage andprojects through a slot, 9, in the table-carriage B, is secured a stud,h, which is connected by a pitman, i, with the eccentric wrist-pin j,secured to the face of the cam F or to the shaft D.

The shaft D, the wrist-pin j, and the stud h form mechanism forimparting to the tool-carriage a reciprocating motion.

To the part A of the frame A is secured,by means of screws 9, astationary abutment, L, provided with or forming the split clamp Z,through which passes the punch H. In the lower part of the split clamp lis inserted a die, m, drilled centrally, to allow the passage of thelower part of the punch H, andto form a guide for the same. The outerdiameter of this die is made somewhat larger than that of the punch, sothat the clamp lcan be drawn tightly upon the die without bringing theclamp to bear upon the punch sufficientlyhard to interfere with itsmotion. The punch I passes through the split clamp n, into which clampis inserted a die, 0, which performs a similar service in relation tothe punch I as the die m does for the punch H. Both punches H I are madehollow (see Fig. 5) to allow the passage of the wads of material punchedout, and consist of an enlarged part, d, serving as a stem, and theinterchangeable part or punching end (i In the drawings the machine isshown in its normal position. In said position the recess in the cam Fis in its top position and engages the stud c, and the center of thewrist-pinj is on a horizontal linewith the center of theshaft D. In theoperation of the machine, after the pile of paper or other material tobe punched has been laid upon the table 0 the pulley E is given a rotarymotion, so as to turn the cam F in the direction of the arrow shown inFig. 2. The stud 0, Figs. 1 and 3, is at once lifted out of the recessin the cam, raising the table-carriage B, so as to compress the pile ofpaper to be punched between the abutment L and the table 0. As themotion of the shaft D progresses, the tool-carriage G is given an upwardinotion,and the lower punch, I, enters the material to be punched, andby the relative proportions of the parts is made to enter to about 5 thecenter of the pile. The eccentric wrist-pin j is now at its topmostposition, and on further motion the lower punch, I, is withdrawn and theupper punch, H, enters the pile to be punched, punching a hole in linewith that IO punched by the punch I. When the cam F has returned to itsnormal position, the table 0 will again have been lowered,and thepunched pile of papers or other material can now be removed.

Instead of using two punches, as shown in the drawings, only one punchmay be used, preferably the top one, H. Said punch, having imparted toit a reciprocating motion, is made to pass completely throughthe pile ofpapers or other material; but by using two punches a greater thicknessmay be punched at one time, the advantage being the possibility of usingshorter punches, the use of long punches being disadvantageous onaccount of their liability to break.

What I claim as new, and desire to secure by. Letters Patent, is

1. The combination, in a punching-press,of a frame, A, provided with astationary abutment, L, a table-carriage, B, automatically reciprocatedin a right line in guides on the frame, a table, 0, connected to andmoving with the table-carriage, a reciprocating toolcarriage, G, and apunch, H, carried by the latter, substantially as described.

2. The combination, in a punching-machine, of a frame, A, provided withguides and a stationary abutment, L, a table-carriage, B, arranged inthe guides of the frame, and pro vided with an attached table, G,mechanism, substantially as described, for reciprocating thetable-carriage and table in a right line on the frame, and areciprocating tool-carriage, G, provided with two punches acting inopposite directions, substantially as described.

The combination, substantially as hereinbefore described,of thestationary abutment L, the table 0, mechanism, substantially asdescribed, for imparting to the table a movement toward and from theabutment, and two punches, H I, acting in opposite directions.

Intestimony whereof Ihave hereunto setmy hand and seal in the presenceof two subscribing witnesses.

CHARLES A. LIEB. lVitnesscs:

WV. HAUFF, I E. F. KAs'rENHUBER.

